The vulnerability CVE-2026-57363 affects QuantumCloud ChatBot through improper neutralization of input during web page generation, resulting in a stored cross-site scripting (XSS) issue. This allows attackers to inject malicious scripts that persist on the application and execute in the context of users' browsers. The affected versions include all releases up to and including 8.3.7. The CVSS v3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality, integrity, and availability. There is no vendor advisory or patch information available at this time.

Successful exploitation of this stored XSS vulnerability can lead to execution of arbitrary scripts in the context of the victim's browser, potentially allowing theft of sensitive information, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability to a limited extent. The CVSS vector indicates partial impact on confidentiality, integrity, and availability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider applying input validation and output encoding controls as a temporary mitigation to reduce the risk of stored XSS. Monitor vendor channels for updates and patches.